Semisub
noun, slang
noun, slang ·Uncommon ·College level
Definitions
Noun
- 1 A semisubmersible. informal
- 2 A semisubmarine. informal, uncommon
Etymology
Clipping of semisubmersible. Analyzable as semi- + sub.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.